Khloe Kardashian and Kourtney Kardashian were having a girls' night out at the Hollywood hotspot—and Emma Stone happened to be there, too. Naturally, the ladies chatted for a bit, and the Kardashians and their crew even gave Emma a social media primer!

Jen Atkin, the celeb hair stylist who doubles as Khloe and Kourt's BFF, posted some videos of the night to Snapchat. In it, she and Kourtney give the actress "her first lesson in Snapchat." Em and Kourt put on virtual sunglasses and matching mustaches. "You look so hot," says Kourtney.

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